function isPhone() {
 	let mobile = navigator.userAgent.match(
 		/(phone|pad|pod|iPhone|iPod|ios|iPad|Android|Mobile|BlackBerry|IEMobile|MQQBrowser|JUC|Fennec|wOSBrowser|BrowserNG|WebOS|Symbian|Windows Phone)/i
 	)
 	return mobile != null
 }